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36 # Test C flags FLAGS, and set VARIABLE to true if the work. Also add the
38 MACRO(GMX_TEST_CFLAG VARIABLE FLAGS CFLAGSVAR)
39 IF(NOT DEFINED ${VARIABLE})
40 CHECK_C_COMPILER_FLAG("${FLAGS}" ${VARIABLE})
41 ENDIF(NOT DEFINED ${VARIABLE})
43 SET (${CFLAGSVAR} "${FLAGS} ${${CFLAGSVAR}}")
45 ENDMACRO(GMX_TEST_CFLAG VARIABLE FLAGS CFLAGSVAR)
47 # Test C++ flags FLAGS, and set VARIABLE to true if the work. Also add the
48 # flags to CXXFLAGSVAR.
49 MACRO(GMX_TEST_CXXFLAG VARIABLE FLAGS CXXFLAGSVAR)
50 IF(NOT DEFINED ${VARIABLE} AND CMAKE_CXX_COMPILER_LOADED)
51 CHECK_CXX_COMPILER_FLAG("${FLAGS}" ${VARIABLE})
52 ENDIF(NOT DEFINED ${VARIABLE} AND CMAKE_CXX_COMPILER_LOADED)
54 SET (${CXXFLAGSVAR} "${FLAGS} ${${CXXFLAGSVAR}}")
56 ENDMACRO(GMX_TEST_CXXFLAG VARIABLE FLAGS CXXFLAGSVAR)
59 # This is the actual exported function to be called
62 include(CheckCCompilerFlag)
63 include(CheckCXXCompilerFlag)
66 if(CMAKE_COMPILER_IS_GNUCC)
67 #flags are added in reverse order and -Wno* need to appear after -Wall
69 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
71 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CFLAGS)
72 GMX_TEST_CFLAG(CFLAGS_WARN_EXTRA "-Wextra -Wno-missing-field-initializers -Wno-sign-compare" GMXC_CFLAGS)
74 GMX_TEST_CFLAG(CFLAGS_EXCESS_PREC "-fexcess-precision=fast" GMXC_CFLAGS_RELEASE)
75 GMX_TEST_CFLAG(CFLAGS_COPT "-fomit-frame-pointer -funroll-all-loops"
77 GMX_TEST_CFLAG(CFLAGS_NOINLINE "-fno-inline" GMXC_CFLAGS_DEBUG)
80 if(CMAKE_COMPILER_IS_GNUCXX)
82 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
84 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CXXFLAGS)
85 GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra -Wno-missing-field-initializers -Wno-sign-compare" GMXC_CXXFLAGS)
87 GMX_TEST_CXXFLAG(CXXFLAGS_EXCESS_PREC "-fexcess-precision=fast" GMXC_CXXFLAGS_RELEASE)
88 GMX_TEST_CXXFLAG(CXXFLAGS_COPT "-fomit-frame-pointer -funroll-all-loops"
89 GMXC_CXXFLAGS_RELEASE)
90 GMX_TEST_CXXFLAG(CXXFLAGS_NOINLINE "-fno-inline" GMXC_CXXFLAGS_DEBUG)
94 if (CMAKE_C_COMPILER_ID MATCHES "Intel")
97 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
99 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall" GMXC_CFLAGS)
100 GMX_TEST_CFLAG(CFLAGS_STDGNU "-std=gnu99" GMXC_CFLAGS)
101 GMX_TEST_CFLAG(CFLAGS_OPT "-ip -funroll-all-loops" GMXC_CFLAGS_RELEASE)
103 GMX_TEST_CFLAG(CFLAGS_WARN "/W2" GMXC_CFLAGS)
104 GMX_TEST_CFLAG(CFLAGS_X86 "/Qip" GMXC_CFLAGS_RELEASE)
108 if (CMAKE_CXX_COMPILER_ID MATCHES "Intel")
111 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
113 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall" GMXC_CXXFLAGS)
114 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-ip -funroll-all-loops" GMXC_CXXFLAGS_RELEASE)
116 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/W2" GMXC_CXXFLAGS)
117 GMX_TEST_CXXFLAG(CXXFLAGS_X86 "/Qip" GMXC_CXXFLAGS_RELEASE)
122 if (CMAKE_C_COMPILER_ID MATCHES "PGI")
123 GMX_TEST_CFLAG(CFLAGS_OPT "-fastsse" GMXC_CFLAGS_RELEASE)
125 if (CMAKE_CXX_COMPILER_ID MATCHES "PGI")
126 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-fastsse" GMXC_CXXFLAGS_RELEASE)
130 if (CMAKE_C_COMPILER_ID MATCHES "PathScale")
132 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
134 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CFLAGS)
135 GMX_TEST_CFLAG(CFLAGS_OPT "-OPT:Ofast -fno-math-errno -ffast-math"
137 GMX_TEST_CFLAG(CFLAGS_LANG "-std=gnu99" GMXC_CFLAGS)
139 if (CMAKE_CXX_COMPILER_ID MATCHES "PathScale")
141 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
143 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CXXFLAGS)
144 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-OPT:Ofast -fno-math-errno -ffast-math"
145 GMXC_CXXFLAGS_RELEASE)
149 if (CMAKE_C_COMPILER_ID MATCHES "XL")
150 GMX_TEST_CFLAG(CFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CFLAGS)
151 GMX_TEST_CFLAG(CFLAGS_LANG "-qlanglvl=extc99" GMXC_CFLAGS)
153 if (CMAKE_CXX_COMPILER_ID MATCHES "XL")
154 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CXXFLAGS)
159 # disable warnings for:
160 # inconsistent dll linkage
161 # forcing value to bool (for C++)
162 GMX_TEST_CFLAG(CFLAGS_WARN "/wd4273" GMXC_CFLAGS)
163 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/wd4273 /wd4800" GMXC_CXXFLAGS)
166 if (CMAKE_C_COMPILER_ID MATCHES "Clang")
168 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
170 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CFLAGS)
173 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
175 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
177 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CXXFLAGS)
180 # now actually set the flags:
182 if ( NOT GMX_SKIP_DEFAULT_CFLAGS )
183 set(CMAKE_C_FLAGS "${GMXC_CFLAGS} ${CMAKE_C_FLAGS}")
184 set(CMAKE_C_FLAGS_RELEASE "${GMXC_CFLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}")
185 set(CMAKE_C_FLAGS_DEBUG "${GMXC_CFLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}")
189 if ( NOT GMX_SKIP_DEFAULT_CFLAGS)
190 set(CMAKE_CXX_FLAGS "${GMXC_CXXFLAGS} ${CMAKE_CXX_FLAGS}")
191 set(CMAKE_CXX_FLAGS_RELEASE
192 "${GMXC_CXXFLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}")
193 set(CMAKE_CXX_FLAGS_DEBUG
194 "${GMXC_CXXFLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}")
196 ENDMACRO(gmx_c_flags)